title: Effect of parity on second-trimester uterine artery Doppler flow velocity and waveforms.
mesh_terms: D000328:Adult; D001158:Arteries; D001783:Blood Flow Velocity; D005260:Female; D006801:Humans; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D012907:Smoking / Q000009:adverse effects / Q000503:physiopathology; D018608:Ultrasonography, Doppler / Q000379:methods; D016216:Ultrasonography, Prenatal / Q000379:methods; D014599:Uterus / Q000098:blood supply*